Home / 859,469,942.43-1,289,203,303.77-269,305,361.55

Finding the Fourth Proportional to 859,469,942.43, 1,289,203,303.77 and 269,305,361.55

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Solution

The fourth proportional to 859,469,942.43, 1,289,203,303.77 and 269,305,361.55 is: 403,957,537.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,469,942.43 : 1,289,203,303.77 = 269,305,361.55 : x
  2. Step 2: Convert to fraction form
    859,469,942.43/1,289,203,303.77 = 269,305,361.55/x
  3. Step 3: Cross multiply
    859,469,942.43x = 1,289,203,303.77 × 269,305,361.55
  4. Step 4: Simplify right side
    859,469,942.43x = 347,189,361,833,234,368
  5. Step 5: Solve for x
    x = 347,189,361,833,234,368/859,469,942.43
  6. Step 6: Final answer
    x = 403,957,537.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.